Permutation lock for ignition systems



F. o. WILLEY PERMUTATIQN LOOK FOR IGNITION SYSTEMS Mar. 20, 1923.

2 shets-sheel; 1

Filed May 6, 1921 WITNESSES- ATTOIMHS Mar. 20, 1923.

.F. o. WILLEY PERMUTATION LOCK FOR IGNITION SYSTEMS Fil ed' May 6, 19212 sheets-sheet 2 A TTORNEYS Patented Mar. 20, 1923.

FRANK O. WILLEY, OF INDIANAPOLIS,

2' rnnuu'm'rron LOCK FOR IGNITION srsrmrs.

Application filed Kay 6, 1921. Serial No. 467,248.

To allwhom it may concern: 7

-Be it known that I, FRANK O. WILLEY, a citizen of the United States,and a resident of Indianapolis in the county of Marion and State ofIndiana, have invented new and Improved Permutation Locks for IgnitionSystems, of which the followin is a description. I

he general object of the invention is to provide a novel deviceapplicable to the coil box of a known type of automobile for locking thecoil elements to prevent sur: reptitious removal of the coils from thecoil box.

A furtherirn ortant object of the invention is to provide an embodimentof the locking means referred to which will at the same timeshort-circuit the coil units.

The nature of the invention and its advantages and distinctive featureswill clear- 1y appear as'the description proceeds.

Referenced s to be had to the accompanying drawings forming apart ofthis specification, it. being understoodthat the drawings are merelyillustrative of one example of the invention.

Figure 1 is a case and permutation tom thereof; 1 g

' Figure 2 is a vertical section through the lock case on the line 2-2,Figure 1 and through the coil box, the view showing in edge view a latchelement applicable to the respective coil unitsvto be engaged ordisengaged by the lock bolts;

lan view of a locking Figure 3 is a face view ofthe latch element;

Figure 43s aplanview of,-one.ofthe permutation, disks;

, Figure 5 is a plan view of a guide plate provided in the lock case forthe latch bolt; Figure 6 isa transverse vertical section on the line6-6, Figure 1;

Figure '7 is alongitudinal vertical on the line 7-7, Figure 1; 1 I 1 I Figure& is a perspective-view ofthe ,pivot stud for the permutation disksandfunctioning in the locking'of the bolt.

In Figure 2A indicates a coil box; a, the cover thereof; B, a coil hereconventionally shown; C, the outer and lower coil terminals; D, theresilient contacts engageable with the terminals C; and E, the bindinposts, for conductor wires. The parts re erred to are of knownconstruction.

section .latch element 11 spaced to lie in position lock beneath thebotwithin the box In carrying out my invention in the form illustrated Iprovide a lock case 10 adapted in practice to be positioned beneath thebottom of the coil box and secured thereto in any suitable manner to liein a plane parallel with the bottom. A latch element 11 which inpractice is made from flat metal is disposed vertically between a coil Band the back of the coil box and is formed with an eye 12 at its upperendto be slipped over the lower terminal C. The latch element 11 has alength to extend through a hole a in the bottom of the coil box andproject into the lock case 10 through the open top'thereof. At the lowerend the has a transverse hole 13 through which may be projected or fromwhich may be withdrawn a latch tongue 15 formed on the end of the lockbolt 14, having a handle 16 at the front of the box A. The lock bolt 14in the illustrated example is adapted for locking four coils andtherefore consists of a long flat plate, the locking tongues 15 beingformed integrally therewith to project fromthe rear edge and forengagement with a plurality of elements 11.

' On a centering stud 18 rising from the bottom of the lock case 10 nearthe front a plurality of permutation disks 17 are placed to turn withaxis. Extending radially from the eye or bore 17 of each disk is a slot19and a slot 20 is formed transversely in the stud 18- so that when theslot of the stud and the said stud as an 7 the three slots 19 of thedisks. 17 aline,"the I elements 11, thereby permitting the coilswith.the latch elements 11 ed from the box A. With the bolt 14: shotforwardly to engage the elements 15 with the respective elements 11, thecoils are locked by reason of the engagement of the elements 11 with thecontact terminals C. For looking thebolt 14, it is formed with adepending flange 21 of a size to be accommodated in theslo't '20 ofcentering-stud 18 whereby the disks 17 may be freely turned about thestud for throwing the res ective slots 19 out of alinement to there yprevent the flange 21 from moving out of the slot 20 of the stud.

In its sliding movements the bolt 14 is ided at its inner end by adepending flange 22 thereon moving in a vertical slot thereon to belift- 23 in a fixed upstanding member 24 of the lock case, said member24 in the present example being struck up from a plate 225 secured inthe case 10 at the bottom:

Each disk 17 is formed with annular indicating member 27. arrangedingroups of ten separated by notches 28, for convenience in counting toa given point or in locating a given mark or symbol between or adjacentto each member 27. There are ten groups of ten members each on each disk17 and if three disks be employed as in the illustrated example, theassemblage permits of one hundred times one hundred different settingsor one million settings in all. For a zero point on the disk a tooth orradial protubcrant member 26 may be utilized. In order to vary therelation of the members 27 to the position of the slot 19 in a disk 17,I form the outer or rim portion of the disk separate from the centralportion 29, said rim portion and central portion being engaged by acorresponding toothed formation.

Normally, the. bolt 14 is withdrawn in the outer position as presentedby full lines in Figure 1 from which figure it will be observed that thelocking flange 21 is partially in the slots 19 of the disks 1? andpartially in the slot of stud IS in which position the latch members 15are out of en agement with the latch elements 11. Upon t ie driverleavin the automobile, the handle 16 is presse v inwardly to move thebolt 14 and its latch projections 15 rearwardly so that said latchprojections engage the 0 enings 13 in the respective elements 1' I iththe latching members 15 and bolt in engagement with the latches 11 thecoils will be shortcircuited since the elements 11 are hung upon therespective lower terminals C of the coils thereby cutting out the sparklugs I would state in conclusion t at while the illustrated exampleconstitutes a practical embodiment of my invention, I do not limitmyself strictly to the mechanical details herein illustrated, sincemanifestly the same can be considerably varied without de' arture fromthe spirit of the invention as de ned in the appended claims.

Having thus described my invention, I claim: 1

1, In a lock of the character described, a slidable bolt, a series ofpermutation disks, :1 centering stud about which said disks may turn,the stud being slotted diametrically at one of its ends and the diskshaving each a slot that ma be br ram with the stud slotzsaid mg anhamber accommodated in the slot and movable into the dtakwtms whenthe'latter are in register with the stud slot, said bolt when said studelbtandsn'iddilslbfi's are alined being free to be slid in a lanetransverse to the axis of the stud 'ahtl ttf'the axis of the disks.

2. In a lockin means of the class described, a latch e emeht'havln anopenin at its lower end, a locking bol formed wit a projection adaptedtb'engage or disengage said latch element, a series of permutation diskshavin a central opening. a stud for said central openin about; whichsaiddisk's may turn, said stu presenting at its up' face a diametricallyextending slot; said disks b'eing eacliproyided with a radial] extendingslot which may be brought i register with the sibt in the stud, and amember on said lbcking'b'olt' normslly'aecommodated in the stud slotandmovablt! in the disk slots when the same are in register with the studslot whereby tb'permit'a sliding of said bolt.

3. In a permutation lo'ck' of tile classdescribed, a plurality of m erimo'sed disks, each having indicating on their '(peripheries, an openinFin the center an a radially-extendm' s at margin into said opening astud avin .a slot 0% one cf its ends e riding diame can 'd plvolied toregister with the slbts of e' d ska"; and a bolt provided with apro'ectiofl within said slot in the stu and adap to slide in the slotsof the dj whenth'e' same are alined' with the slot the stuu Said boltbeing. slidable in the lane of the disks and transverselyto theia s ofsaid stud.

4. In a lock of the classdlescrlpefli a support, a stud having adiametrical slot in'one of its ends arranged on said su a disk haviiiganopenin "to' meivefi d stud and a slot extendingira ililly theieoadqpt/Bd to re er with said diahietric'al slot in the stud olt slidablein the plane of th'e'disk and crosswiseofsaid stud ibove said disk,means integral with sai' extbtimng within said slot in the. smaflmfi-masaid bolt being formed at casual with prejct'ions normally eniz'g'ingsaid latch cans and dis-engages l 't refrom wheflsa not in the disk isahned with the slot iirfliqscud and the bolt slid so was cmlsesaid iwflmeans to move from the slot in tfieslnd to theslot in as disk.

FRANK o; WILLEI'.

